136512420 has 96 divisors (see below), whose sum is σ = 418836096. Its totient is φ = 32947200.

The previous prime is 136512413. The next prime is 136512451. The reversal of 136512420 is 24215631.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261760 + ... + 262280.

It is an arithmetic number, because the mean of its divisors is an integer number (4362876).

Almost surely, 2^136512420 is an apocalyptic number.

136512420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 136512420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209418048).

136512420 is an abundant number, since it is smaller than the sum of its proper divisors (282323676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136512420 is a wasteful number, since it uses less digits than its factorization.

136512420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 136512420 is about 11683.8529603894. The cubic root of 136512420 is about 514.9013792996.

The spelling of 136512420 in words is "one hundred thirty-six million, five hundred twelve thousand, four hundred twenty".